Hi, I am newly registered on the forum, fairly new homeowner and hope to get help with some questions and eventually contribute myself once I get more comfortable.
We live in a split-level house where our "detached" garage is located below and in front of the house, so that the garage roof forms a terrace for the ground floor of the house (the house itself is on a hill with retaining walls on either side of the garage). There is a gap of about 70 cm with gravel and other filling material between the actual garage roof and the house facade, which has now settled a few centimeters.
Today there are paving stones on top of the garage, with some kind of fabric + asphalt/tar and gravel underneath. My question is really what is the best solution for moisture sealing down to the garage roof (the terrace is fully exposed as the roof only covers the gravel gap), as well as the surface covering for the terrace floor on top of this. Spontaneously, it feels like paving stones are unnecessarily heavy and let through more water than desirable, but what alternatives are there? I've been considering laying slate in fix on top of a suitable moisture barrier, does anyone have experience with a similar setup?
We live in a split-level house where our "detached" garage is located below and in front of the house, so that the garage roof forms a terrace for the ground floor of the house (the house itself is on a hill with retaining walls on either side of the garage). There is a gap of about 70 cm with gravel and other filling material between the actual garage roof and the house facade, which has now settled a few centimeters.
Today there are paving stones on top of the garage, with some kind of fabric + asphalt/tar and gravel underneath. My question is really what is the best solution for moisture sealing down to the garage roof (the terrace is fully exposed as the roof only covers the gravel gap), as well as the surface covering for the terrace floor on top of this. Spontaneously, it feels like paving stones are unnecessarily heavy and let through more water than desirable, but what alternatives are there? I've been considering laying slate in fix on top of a suitable moisture barrier, does anyone have experience with a similar setup?
How does the drainage of the garage roof work? What is the slope of the roof? Is the garage completely cast in concrete or what material is it made of?
Spontaneously, it seems like it's the bottom layer + asphalt/tar that protects the roof from water. If it's done correctly, there's no reason for additional protection on top of this. You definitely should not have another moisture barrier on top of the gravel (as I interpreted your proposal).
Spontaneously, it seems like it's the bottom layer + asphalt/tar that protects the roof from water. If it's done correctly, there's no reason for additional protection on top of this. You definitely should not have another moisture barrier on top of the gravel (as I interpreted your proposal).
The garage is made of concrete and has no slope on the roof, so there is essentially no runoff except for the paths the water chooses to take, presumably into the gravel. The question was not whether I should have another moisture barrier above the gravel, but rather if the current solution is suitable (I suspect that fix+tiles would let less water through to the waterproofing layer, and the gravel + paving stones currently hold moisture).
That sounds like a sick solution. So the water just runs off along the walls?
Whether you have fix+tiles or paving stones on top probably doesn't matter much, both let water through, although the paving stones likely let more/faster. If you're going to lay tiles in fix, you still have to change the material underneath because it's hardly possible to lay them directly in the gravel; they will crack in no time. It sounds like the big problem is that it's completely flat under the gravel and there's no drainage (gutter, etc.).
Whether you have fix+tiles or paving stones on top probably doesn't matter much, both let water through, although the paving stones likely let more/faster. If you're going to lay tiles in fix, you still have to change the material underneath because it's hardly possible to lay them directly in the gravel; they will crack in no time. It sounds like the big problem is that it's completely flat under the gravel and there's no drainage (gutter, etc.).
No, there is a copper edge at the borders that leads the water away a bit, but no proper downspout solution/gutter. If I replace the paving stones, the gravel will obviously go too.
Hello!
I answer a similar question with a suggestion in this thread:
http://www.byggahus.se/forum/tillbyggnad/215553-tata-lattbetongstak.html#post1762452
Kind regards: Torpalainen
I answer a similar question with a suggestion in this thread:
http://www.byggahus.se/forum/tillbyggnad/215553-tata-lattbetongstak.html#post1762452
Kind regards: Torpalainen